CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 24, 2022	Sep. 25, 2021	Sep. 24, 2022	Sep. 25, 2021
Statement of Comprehensive Income [Abstract]
NET INCOME (LOSS)		$ (8,780)	$ 6,433	$ (16,624)	$ 7,754
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Unrealized gain (loss) on interest rate swaps		0	(3)	0	40
Income taxes		0	0	0	0
Unrealized gain (loss) on interest rate swaps, net		0	(3)	0	40
Reclassification of (gain) loss into earnings from interest rate swaps	[1]	0	169	(7)	611
Income taxes		0	47	(2)	174
Reclassification of (gain) loss into earnings from interest rate swaps, net		0	122	(5)	437
Reclassification of unrealized loss into earnings from dedesignated interest rate swaps	[2]	0	0	210	0
Income taxes		0	0	33	0
Reclassification of unrealized loss into earnings from dedesignated interest rate swaps, net		0	0	177	0
Reclassification of net actuarial gain into earnings from postretirement benefit plans	[2]	0	(6)	(2)	(18)
Income taxes		0	0	0	0
Reclassification of net actuarial gain into earnings from postretirement benefit plans, net		0	(6)	(2)	(18)
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX		0	113	170	459
COMPREHENSIVE INCOME (LOSS)		$ (8,780)	$ 6,546	$ (16,454)	$ 8,213

[1] Amounts for cash flow hedges reclassified from accumulated other comprehensive income (loss) to net loss were included in interest expense in the Company's Consolidated Condensed Statements of Operations.

[2] Amounts for postretirement plans reclassified from accumulated other comprehensive income (loss) to net loss were included in selling and administrative expenses in the Company's Consolidated Condensed Statements of Operations.